package com.great.service;

import com.great.domain.Product;
import com.great.domain.User;

import java.util.List;

public interface ProductService {

    public List<Product> findAllProduct(int page, int size);

    public void addproduct(Product product);

    public Product findproductById(Integer product_id);

    public void productchange(Product product);

    public void shangjia(Integer product_id);

    public void xiajia(Integer product_id);

    List<Product> findcheProduct(int page, int size,Product product, String qrysearch);
}
